Blockchain technology

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I've noticed that blockchain solution startups have started to appear recently a lot.
TED talk videos I've seen explaining this to a dirty normie like me gives imo a false impression of "democratized, equal" society that blockchain would create.

Considering capabilities of tech itself, what kind of scenario would allow this to happen? A musician can't build himself a distribution channel for his work, so middle men will be present regardless due to running costs.
Where exactly is my property stored? Into one or multiple cryptocurrencies if I so choose or my personal mobile device?
How would exchange of a property be done if theoretically a block cannot be hacked? Or could a cryptocurrency's administrator be the only one to do it?
How is the profile data of yourself created and controlled only by you in this technology? What is this user tracker trail sweeper that is talked about?